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Showing content from https://timsong-cpp.github.io/cppwp/n4659/reverse.iter.ops below:

[reverse.iter.ops]

27 Iterators library [iterators] 27.5 Iterator adaptors [predef.iterators] 27.5.1 Reverse iterators [reverse.iterators] 27.5.1.3 reverse_­iterator operations [reverse.iter.ops] 27.5.1.3.1 reverse_­iterator constructor [reverse.iter.cons]

constexpr reverse_iterator();

Effects: Value-initializes current. Iterator operations applied to the resulting iterator have defined behavior if and only if the corresponding operations are defined on a value-initialized iterator of type Iterator.

constexpr explicit reverse_iterator(Iterator x);

Effects: Initializes current with x.

template <class U> constexpr reverse_iterator(const reverse_iterator<U>& u);

Effects: Initializes current with u.current.

27.5.1.3.2 reverse_­iterator​::​operator= [reverse.iter.op=]

template <class U> constexpr reverse_iterator& operator=(const reverse_iterator<U>& u);

Effects: Assigns u.base() to current.

27.5.1.3.6 operator++ [reverse.iter.op++]

constexpr reverse_iterator& operator++();

Effects: As if by: --current;

constexpr reverse_iterator operator++(int);

Effects: As if by:

reverse_iterator tmp = *this;
--current;
return tmp;
27.5.1.3.7 operator-- [reverse.iter.op--]

constexpr reverse_iterator& operator--();

Effects: As if by ++current.

constexpr reverse_iterator operator--(int);

Effects: As if by:

reverse_iterator tmp = *this;
++current;
return tmp;
27.5.1.3.8 operator+ [reverse.iter.op+]

constexpr reverse_iterator operator+(difference_type n) const;

Returns: reverse_­iterator(current-n).

27.5.1.3.13 operator== [reverse.iter.op==]

template <class Iterator1, class Iterator2> constexpr bool operator==( const reverse_iterator<Iterator1>& x, const reverse_iterator<Iterator2>& y);

Returns: x.current == y.current.

27.5.1.3.14 operator< [reverse.iter.op<]

template <class Iterator1, class Iterator2> constexpr bool operator<( const reverse_iterator<Iterator1>& x, const reverse_iterator<Iterator2>& y);

Returns: x.current > y.current.

27.5.1.3.15 operator!= [reverse.iter.op!=]

template <class Iterator1, class Iterator2> constexpr bool operator!=( const reverse_iterator<Iterator1>& x, const reverse_iterator<Iterator2>& y);

Returns: x.current != y.current.

27.5.1.3.16 operator> [reverse.iter.op>]

template <class Iterator1, class Iterator2> constexpr bool operator>( const reverse_iterator<Iterator1>& x, const reverse_iterator<Iterator2>& y);

Returns: x.current < y.current.

27.5.1.3.17 operator>= [reverse.iter.op>=]

template <class Iterator1, class Iterator2> constexpr bool operator>=( const reverse_iterator<Iterator1>& x, const reverse_iterator<Iterator2>& y);

Returns: x.current <= y.current.

27.5.1.3.18 operator<= [reverse.iter.op<=]

template <class Iterator1, class Iterator2> constexpr bool operator<=( const reverse_iterator<Iterator1>& x, const reverse_iterator<Iterator2>& y);

Returns: x.current >= y.current.

27.5.1.3.19 operator- [reverse.iter.opdiff]

template <class Iterator1, class Iterator2> constexpr auto operator-( const reverse_iterator<Iterator1>& x, const reverse_iterator<Iterator2>& y) -> decltype(y.base() - x.base());

Returns: y.current - x.current.

27.5.1.3.20 operator+ [reverse.iter.opsum]

template <class Iterator> constexpr reverse_iterator<Iterator> operator+( typename reverse_iterator<Iterator>::difference_type n, const reverse_iterator<Iterator>& x);

Returns: reverse_­iterator<Iterator> (x.current - n).

27.5.1.3.21 Non-member function make_­reverse_­iterator() [reverse.iter.make]

template <class Iterator> constexpr reverse_iterator<Iterator> make_reverse_iterator(Iterator i);

Returns: reverse_­iterator<Iterator>(i).


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